AttitudeStateHistoryWriter.java
/* Copyright 2002-2024 Luc Maisonobe
* Licensed to CS GROUP (CS) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* CS licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.orekit.files.ccsds.ndm.adm.acm;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import org.orekit.files.ccsds.definitions.TimeConverter;
import org.orekit.files.ccsds.section.AbstractWriter;
import org.orekit.files.ccsds.utils.FileFormat;
import org.orekit.files.ccsds.utils.generation.Generator;
import org.orekit.utils.AccurateFormatter;
import org.orekit.utils.units.Unit;
/** Writer for attitude state history data.
* @author Luc Maisonobe
* @since 12.0
*/
class AttitudeStateHistoryWriter extends AbstractWriter {
/** Attitude state history block. */
private final AttitudeStateHistory history;
/** Converter for dates. */
private final TimeConverter timeConverter;
/** Create a writer.
* @param attitudeStateHistory trajectory state history to write
* @param timeConverter converter for dates
*/
AttitudeStateHistoryWriter(final AttitudeStateHistory attitudeStateHistory,
final TimeConverter timeConverter) {
super(AcmDataSubStructureKey.att.name(), AcmDataSubStructureKey.ATT.name());
this.history = attitudeStateHistory;
this.timeConverter = timeConverter;
}
/** {@inheritDoc} */
@Override
protected void writeContent(final Generator generator) throws IOException {
// trajectory state history block
final AttitudeStateHistoryMetadata metadata = history.getMetadata();
generator.writeComments(metadata.getComments());
// identifiers
generator.writeEntry(AttitudeStateHistoryMetadataKey.ATT_ID.name(), metadata.getAttID(), null, false);
generator.writeEntry(AttitudeStateHistoryMetadataKey.ATT_PREV_ID.name(), metadata.getAttPrevID(), null, false);
generator.writeEntry(AttitudeStateHistoryMetadataKey.ATT_BASIS.name(), metadata.getAttBasis(), null, false);
generator.writeEntry(AttitudeStateHistoryMetadataKey.ATT_BASIS_ID.name(), metadata.getAttBasisID(), null, false);
// references
generator.writeEntry(AttitudeStateHistoryMetadataKey.REF_FRAME_A.name(), metadata.getEndpoints().getFrameA().getName(), null, true);
generator.writeEntry(AttitudeStateHistoryMetadataKey.REF_FRAME_B.name(), metadata.getEndpoints().getFrameB().getName(), null, true);
// types
if (metadata.getAttitudeType() == AttitudeElementsType.EULER_ANGLES) {
generator.writeEntry(AttitudeStateHistoryMetadataKey.EULER_ROT_SEQ.name(), metadata.getEulerRotSeq(), true);
}
generator.writeEntry(AttitudeStateHistoryMetadataKey.NUMBER_STATES.name(), metadata.getNbStates(), true);
generator.writeEntry(AttitudeStateHistoryMetadataKey.ATT_TYPE.name(), metadata.getAttitudeType(), true);
if (metadata.getRateType() != null) {
generator.writeEntry(AttitudeStateHistoryMetadataKey.RATE_TYPE.name(), metadata.getRateType(), true);
}
// data
final List<Unit> attUnits = metadata.getAttitudeType().getUnits();
final List<Unit> rateUnits = metadata.getRateType() == null ?
Collections.emptyList() : metadata.getRateType().getUnits();
for (final AttitudeState state : history.getAttitudeStates()) {
final double[] elements = state.getElements();
final StringBuilder line = new StringBuilder();
line.append(generator.dateToString(timeConverter, state.getDate()));
for (int i = 0; i < attUnits.size(); ++i) {
line.append(' ');
line.append(AccurateFormatter.format(attUnits.get(i).fromSI(elements[i])));
}
for (int i = 0; i < rateUnits.size(); ++i) {
line.append(' ');
line.append(AccurateFormatter.format(rateUnits.get(i).fromSI(elements[attUnits.size() + i])));
}
if (generator.getFormat() == FileFormat.XML) {
generator.writeEntry(Acm.ATT_LINE, line.toString(), null, true);
} else {
generator.writeRawData(line);
generator.newLine();
}
}
}
}